四角柱容器に堆積した籾層の底面圧力と空隙率

Translated title of the contribution: Bottom Pressure and Porosity of a Rough Rice Layer Piled in a Rectangular Prism Container

吉嵜 隆一, 平井 康丸, 井上 真大朗, 稲垣 紫緒, 井上 英二, 岡安 崇史, 光岡 宗司

Research output: Contribution to journalArticlepeer-review

Abstract

<p>The bottom pressure and porosity of a rough rice layer piled in a grain tank are expected to be negatively correlated. Thus, we investigated the applicability of Janssen's equation to the estimation of the bottom pressure, which can be an indicator of the porosity. Janssen's equation accurately estimated the bottom pressure of a rough rice layer (moisture content: 14 %, 18 %, 25 %, 30 %) piled in a rectangular prism container with an RMSE of 0.04-0.13 kPa, indicating that Janssen's equation is applicable to a grain tank of rectangular cross-sectional shape, but the porosity was dense and almost constant for each moisture content. Whether the abovementioned negative correlation prevails during harvest requires further investigation.</p>
Translated title of the contributionBottom Pressure and Porosity of a Rough Rice Layer Piled in a Rectangular Prism Container
Original languageJapanese
Pages (from-to)383-391
Number of pages9
Journal農業食料工学会誌 = Journal of the Japanese Society of Agricultural Machinery and Food Engineers
Volume81
Issue number6
DOIs
Publication statusPublished - 2019

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